• Code: N5-0
• Description: Push Scan TimeOut. • Push scan notification failed during a scan job. • Or, there is no scan job request from the PC after a push scan notification.
• Remedy: The error will clear itself after a set amount of time has passed.

• Code: N9-0
• Description: Controller Logic fail. A software defect that cannot be ignored is found in the Controller software.
• Remedy: Turn the power OFF then ON.

• Code: N9-1
• Description: IOT Communication Error. The AIOC PWB has detected a Type-Di communication error.
• Remedy: Turn the power OFF then ON.

• Code: U0-1
• Description: Main Motor Stop Error. The motor runs for over 120 seconds without any paper being fed.
• Remedy: The problem can be solved according to RAP U1- 1 Main Motor Rotation Error (U1-1).Y↓ N→Execute diagnostics [29-49] to check the ROM version. The ROM is the latest version. Y↓N→Upgrade the ROM to the latest version. Replace the IOT Motor (PL 1.1)and the AIOC PWB (PL 8.1) in that order. Completed

• Code: U1-1
• Description: Main Motor Rotation Error. 500 ms after the IOT Motor starts, the IOT Motor Lock signal is Low.
• Remedy: Close the Left Hand Cover and the Front Cover. Execute diagnostics [04--01 Main Motor On]. The IOT Motor can be heard rotating. Y↓N→Check P/J504 and P/J201. Both P/J504 and P/J201 are connected securely. Y↓N→Connect P/J504 and P/J201 securely. Measure the voltage between LVPS PWB P504-1 ( P/J504) (+) and GND (-). The voltage is approximately +24VDC. Y↓N→Replace the LVPS (PL 8.1). Check the wire between J504-3 ( P/J504) and J201-3 ( P/J201). The wire is not shorted or open. Y↓N→Repair the wire. Replace the IOT Motor (PL 1.1) and the AIOC PWB (PL 8.1) in that order. Check the installation of the IOT Motor (PL 1.1 ) . The IOT Motor is installed properly. Y↓N→Install the IOT Motor (PL 1.1 ) properly. Turn the rotor of the IOT Motor (PL 1.1 ) counterclockwise by hand. It rotates smoothly, without any abnormal load. Y↓N→Check for any foreign substances that obstruct the drive and for any incorrectly installed parts. There are foreign substances or incorrectly installed parts. Y↓N→Replace the IOT Motor (PL 1.1) . Remove any foreign substances and fix any installation errors. Check the wire between J504-3 ( P/J504) and J201-3 ( P/J201). The wire is not shorted or open. Y↓N→Repair the wire. Replace the IOT Motor (PL 1.1) and the AIOC PWB (PL 8.1) in that order.

• Code: U2-1
• Description: Carriage Module Fail. A carriage fault was detected.
• Remedy: Execute diagnostics [05-22 Move scanner to home position] and [05-23 Move scanner to maintenance position]. The carriage moves. Y↓N→Check each IIT Carriage connector. Each connector is connected securely. Y↓N→Connect each connector securely. Check for foreign substances and deformed parts in the carriage. None is found. Y↓N→Remove the foreign substances and repair the deformed parts. Replace the IIT Carriage (PL 10.3) . Execute diagnostics [05-23 Move scanner to maintenance position]. When the IIT Carriage has moved to the leftmost position, press the [Stop] button to put the Carriage Sensor into the blocked state. Execute diagnostics [5-11 Home Sensor], and "H" is displayed. Y↓N→Check each IIT Carriage and Carriage Sensor connector. Each connector is connected securely. Y↓N→Connect each connector securely. Replace the Carriage Sensor (PL 10.6) and the IIT Carriage (PL 10.3) in that order. Check the Carriage Sensor (PL 10.6 ). The Carriage Sensor is installed properly. Y↓N→Install the Carriage Sensor (PL 10.6) properly. Replace the IIT Carriage (PL 10.3) .

• Code: U3-5
• Description: Laser Power Or ROS Motor Fail. The ROS Motor does not turn, or the laser output is not normal.
• Remedy: Execute diagnostics [6-15 ROS Motor ON]. The ROS Motor can be heard rotating. Y↓N→Measure the voltage between the AIOC PWB P403-7 ( P/J403) (+) and GND (-). The voltage is approximately +24VDC. Y↓N→Replace the AIOC PWB (PL 8.1) and the LVPS (PL 8.1) in that order. Replace the ROS (PL 3.1) and the AIOC PWB (PL 8.1) in that order. Measure the voltage between the AIOC PWB P403-1 ( P/J403) (+) and GND (-). The voltage is approximately +5VDC. Y↓N→Replace the AIOC PWB (PL 8.1) . Check the AIOC PWB P/J403 ( P/J403), LD PWB P/J140 ( P/J140), and P/J130 ( P/J130) connectors. The P/J403, P/J140, and P/J130 connectors are connected securely. Y↓N→Connect the AIOC PWB P/J403 ( P/J403), LD PWB P/J140 ( P/J140), and P/J130 ( P/ J130) connectors securely. Check the wires between J403 ( P/J403) and J140 ( P/J140) and between J403 and J130 ( P/ J130) The wires are not shorted or open. Y↓N→Repair the wire(s). Replace the ROS (PL 3.1) and the AIOC PWB (PL 8.1) in that order.

• Code: U4-1
• Description: Fuser On Time Fail. • The lamp did not turn OFF within the specified time after turning ON. • Or, Warm Up was not completed within the specified time after power ON.
• Remedy: When U4-1 occurs, [NVM 50-20 FSR Reset FuserOverTemp] becomes "3." Run [NVM 50-20 FSR Reset FuserOverTemp] using "0" to reset it. Check to see if there is paper in the Fuser. The Fuser is normal and there is no paper in it. Y↓N→Remove the paper. Check the condition of the Fuser. The Fuser is installed properly. Y↓N→Install the Fuser properly. Remove the Fuser. Check the conductivity between the Thermostat contacts. The contacts are conductive. Y↓N→Replace the Fuser (PL 5.1) . Check the Heater Rod for an open circuit. There is no open circuit between J600-1 ( P/ J600) and J600-2. Y↓N→Replace the Fuser (PL 5.1) . Check the resistance of the Thermistor. There is no open circuit between J601-1 ( P/J601) and J601-2, and the resistance is a minimum of 228k ohms (cold). Y↓N→Replace the Fuser (PL 5.1) . Immediately after Main Switch ON, the voltage between J3-3 ( P/J3) (ACH) and J3-1 (ACN) is approximately 200VAC. Y↓N→Replace the LVPS (PL 8.1) . Check the wire between J408 ( P/J408) and P601 ( P/J601). The wire between J408 and P601 is not shorted or open. Y↓N→Repair the wire. Check the wire between J3 ( P/J3) and P600 ( P/J600). The wire between J3 and P600 is not shorted or open. Y↓N→Repair the wire. Replace the Fuser (PL 5.1) , the LVPS (PL 8.1) , and the AIOC PWB (PL 8.1) in that order.